90 THE FARMERS VETERINARIAN 



Other diseases act differently in another way. 

 They progress slowly, are not noticeable at first, 

 but in the end are incurable. Take glanders as a 



RESULT OF BONE SPAVIN 



Pictured here is a natural hock free from disease and a 

 diseased hock, the result of bone spavin. The bone is seriously 

 affected and the easy action prevented. 



typical case. It quietly and silently develops, often 

 taking months or years in reaching the stage of 

 eruption or before it becomes apparent. During 

 all this time, and even after the disease is recog- 



